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J/AJ/154/105   Parameters of 529 Kepler eclipsing binaries  (Kjurkchieva+, 2017)

Orbital parameters of the eclipsing detached Kepler binaries with eccentric orbits. Kjurkchieva D., Vasileva D., Atanasova T. <Astron. J., 154, 105-105 (2017)> =2017AJ....154..105K (SIMBAD/NED BibCode)
ADC_Keywords: Binaries, eclipsing ; Binaries, orbits ; Effective temperatures ; Stars, masses ; Stars, diameters Keywords: binaries: eclipsing - stars: fundamental parameters - stars: solar-type - surveys Abstract: We present precise values of the eccentricity and periastron angle of 529 detached, eccentric, eclipsing stars from the Kepler Eclipsing Binary catalog that were determined by modeling their long cadence data. The temperatures and relative radii of their components as well as their mass ratios were calculated based on approximate values of the empirical relations of MS stars. Around one-third of the secondary components were revealed to be very late dwarfs, some of them possible brown dwarf candidates. Most of our targets fall below the envelope P(1-e2)3/2=5days. The (e,P) distribution of the known eccentric binaries exhibits a rough trend of increasing eccentricity with the period. The prolonged and continuous Kepler observations allowed us to identify 60 new highly eccentric targets with e>0.5. Description: We reviewed the Kepler eclipsing binary catalog (Prsa et al. 2011, Cat. J/AJ/141/83; Slawson et al. 2011, Cat. J/AJ/142/160; Matijevic et al. 2012) to search for detached eclipsing binaries with eccentric orbits. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 99 529 *Information about the targets from the Eclipsing Binary (EB) catalog table2.dat 54 529 *Stellar and orbital parameters of the targets table3.dat 33 3 Comparison with orbital parameters of Helminiak et al. (2016MNRAS.461.2896H) table4.dat 36 21 Comparison with orbital parameters of Borkovits et al. (2015MNRAS.448..946B) table5.dat 92 9 Orbital parameters of eclipsing binary stars with transiting circumbinary planet
Note on table1.dat,table2.dat: The Kepler eclipsing binary catalog (Prsa et al. 2011, Cat. J/AJ/141/83; Slawson et al. 2011, Cat. J/AJ/142/160; Matijevic et al. 2012AJ....143..123M).
See also: B/sb9 : 9th Catalogue of Spectroscopic Binary Orbits (Pourbaix+ 2004-2014) V/133 : Kepler Input Catalog (Kepler Mission Team, 2009) V/118 : Catalog of eclipsing binaries parameters (Perevozkina+, 1999) J/ApJ/832/121 : 4-yr RV survey of red giant in EBs (Gaulme+, 2016) J/ApJ/824/15 : Orbital circularization of Kepler EBs (Van Eylen+, 2016) J/AJ/151/68 : Kepler Mission. VII. Eclipsing binaries in DR3 (Kirk+, 2016) J/A+A/563/A59 : KIC 3858884: list of pulsation frequencies (Maceroni+, 2014) J/AJ/142/160 : Kepler Mission. II. (Slawson+, 2011) J/AJ/141/83 : Kepler Mission. I. Eclipsing binaries in DR1 (Prsa+, 2011) J/AJ/141/78 : Low-mass eclipsing binaries in KIC (Coughlin+, 2011) J/MNRAS/378/179 : Eclipsing Binary with Eccentric Orbits Catalog (Bulut+, 2007) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 8 I8 --- KIC [1026032/12644769] Kepler Input Catalog identifier 10- 21 F12.7 d Per [1.2/1087.3] Period 23- 34 F12.6 d T0 [5487.3/55733.8] Initial epoch T0 (BJD-2400000) 36- 45 F10.4 mag Kpmag [7.3/18.4] Kepler magnitude (Km) 47- 50 I4 K Teff [3717/9224]? Target effective temperature (Teff) 52 A1 --- f_Teff [B] Flag on Teff (B=Binary with unknown Teff) 54- 59 F6.4 --- w1 [0/0.6] First eclipse width, in phase units (w1) 61 A1 --- f_w1 [1] Flag on w1 (1=value derived first by us) 63- 68 F6.4 --- w2 [0/0.19] Second eclipse width, in phase units (w2) 70 A1 --- f_w2 [1] Flag on w2 (1=value derived first by us) 72- 77 F6.4 --- d1 [0/1] First eclipse depth, in relative flux units (d1) 79 A1 --- f_d1 [1] Flag on d1 (1=value derived first by us) 81- 87 F7.5 --- d2 [0/0.42] Second eclipse depth, in relative flux units (d2) 89 A1 --- f_d2 [1] Flag on d2 (1=value derived first by us) 91- 97 F7.5 --- Phase2 [0.03/0.96] Secondary eclipse phase (φ2) (1) 99 A1 --- f_Phase2 [1] Flag on Phase2 (1=value derived first by us)
Note (1): It is assumed φ1=0.
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 8 I8 --- KIC [1026032/12644769] Kepler Input Catalog identifier 10- 13 I4 K Teff1 [3717/9224] Effective temperature of primary (T1) (2) 15 A1 --- f_Teff1 [B] Flag on Teff1 (B=Binary with unknown Teff) (3) 17- 20 I4 K Teff2 [2039/7805] Effective temperature of secondary (T2) (4) 22- 27 F6.4 --- q [0.18/1.4] Mass ratio (4) 29- 34 F6.4 --- r1 [0/0.96] Stellar radii of primary in relative units (r1) (4) 36- 41 F6.4 --- r2 [0/0.91] Stellar radii of secondary in relative units (r2) (4) 43- 47 F5.3 --- e [0.001/0.85] Orbital eccentricity (4) 49- 54 F6.2 deg omega Periastron angle ω (4)
Note (2): We used the available target temperatures Teff (Table1) from the Kepler Input Catalog (Kepler Mission Team 2009, Cat. V/133) and adopted T1=Teff. Note (3): We assumed the mean (solar) value of 5800K for the primary. Note (4): Based on the assumption that the stellar components are MS stars, we calculated approximate values of their parameters from empirical relations (Ivanov et al. 2010BASI...38...83I): Secondary temperature T2=T1(d2/d1)1/4, Mass ratio q=(T2/T1)1.7, Ratio of relative radii k=r2/r1=q0.75. From the last formula and the approximate expression for narrow eclipses r1+r2~π<w>. Eq. (3). (<w> is the mean eclipse width from Table1) we derived approximate values of relative stellar radii: r1=π<w>/(1+k) r2=[π<w>/(1+k)]k. Eq. (4). The calculated values of T2, q, r1, and r2 were used as fixed parameters for PHOEBE ((Prsa & Zwitter 2005ApJ...628..426P) while the calculated values e0 and ω0 were used as input parameters. The orbital inclination i was fixed to correspond approximately to the individual eclipse depths. By varying e and ω around e0 and ω0 as well as "phase shift" we searched for the perfect coincidence of the phases of eclipses.
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 8 I8 --- KIC [3120320/10001167] Kepler Input Catalog identifier 10- 14 F5.3 --- eH [0.034/0.26] Orbital eccentricity, Helminiak et al. 2016MNRAS.461.2896H (eH) 16- 20 F5.1 deg omegaH [213/350.5] Periastron angle, Helminiak et al. 2016MNRAS.461.2896HH) 22- 26 F5.3 --- e [0.049/0.26] Orbital eccentricity, this paper (eour) 28- 33 F6.2 deg omega [28.5/168.8] Periastron angle, this paper (ωour)
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 8 I8 --- KIC [4940201/12356914] Kepler Input Catalog identifier 10- 14 F5.3 --- eB [0.001/0.42] Orbital eccentricity, Borkovits et al. 2015MNRAS.448..946B (eB) 16- 18 I3 deg omB0 [106/359] Lower value of periastron angle range, Borkovits et al. 2015MNRAS.448..946BB) 19 A1 --- --- [-] 20- 22 I3 deg omB1 [108/457]? Upper value of periastron angle range, Borkovits et al. 2015MNRAS.448..946BB) 24- 29 F6.4 --- e [0.0025/0.44] Orbital eccentricity, this paper (eour) 31- 36 F6.2 deg omega [14.1/346.6] Periastron angle, this paper (ωour)
Byte-by-byte Description of file: table5.dat
Bytes Format Units Label Explanations
1- 8 I8 --- KIC [4862625/12644769] Kepler Input Catalog identifier 10- 20 A11 --- Kepler Kepler name, star with transiting circumbinary planet(s) 22- 26 F5.3 --- eP [0.02/0.53] Previous orbital eccentricity (epr) 28- 33 F6.2 deg omegaP [89.1/300.9] Previous periastron angle (ωpr) 35- 79 A45 --- Ref Reference for previous eccentricity & periastron angle 81- 85 F5.3 --- e [0.04/0.6] Orbital eccentricity, this paper (eour) 87- 92 F6.2 deg omega [53/266.5] Periastron angle, this paper (ωour)
History: From electronic version of the journal
(End) Prepared by [AAS]; Sylvain Guehenneux [CDS] 20-Nov-2017
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